This book describes the various devices used in radio communication and broadcasting to achieve high selectivity filtering and coupling. After providing a background in the basics of microwave theory and more detailed material – including a special chapter on precision and errors in measurement – the reader will find detailed descriptions, manufacturing processes, and, for the most useful instances, a number of worked-through formulas, which will allow engineers and technicians to design circuits or components for filtering or coupling applications. Content is covered in this format across a broad range of fields including coaxial cavities, combline filters, band-pass and pass-reject duplexers, multicouplers, circulators, low-noise amplifiers, helix resonators, and much more.
Content:
Chapter 1 Reminders and General Points (pages 1–10): Bernard Piette and Daniel Pasquet
Chapter 2 Measurements in HF (pages 11–24): Bernard Piette and Daniel Pasquet
Chapter 3 Resonant Cavities (pages 25–46): Bernard Piette and Daniel Pasquet
Chapter 4 Fabrication and Tuning of Cavities (pages 47–82): Bernard Piette and Daniel Pasquet
Chapter 5 The Band?pass Filter (pages 83–96): Bernard Piette and Daniel Pasquet
Chapter 6 The Combline Filter (pages 97–128): Bernard Piette and Daniel Pasquet
Chapter 7 Channel Multiplexing (pages 129–156): Bernard Piette and Daniel Pasquet
Chapter 8 Auxiliary Devices (pages 157–188): Bernard Piette and Daniel Pasquet
Chapter 9 Directive Couplers (pages 189–212): Bernard Piette and Daniel Pasquet
Chapter 10 Helical Resonators (pages 213–224): Bernard Piette and Daniel Pasquet
Chapter 11 Multicouplers (pages 225–256): Bernard Piette and Daniel Pasquet
Chapter 12 Utilities (pages 257–270): Bernard Piette and Daniel Pasquet
Chapter 13 Various Questions and Exploratory Ways (pages 271–280): Bernard Piette and Daniel Pasquet
Author(s): Bernard Piette
Publisher: Wiley-ISTE
Year: 2010
Language: English
Pages: 295
Title Page......Page 3
Copyright
......Page 4
Contents......Page 5
Preface......Page 10
Introduction......Page 15
1.1.1. Bifilar lines......Page 20
1.1.2. Coaxial lines......Page 21
1.2. Adaptation and stationary waves......Page 23
1.4. Power in a line......Page 25
1.5. Line sections......Page 26
1.6. Lines with losses......Page 28
2.2.1. The measurements to carry out......Page 29
2.2.2. Bench configuration......Page 31
2.3.1. Measurement principles......Page 32
2.3.2. Measurement errors......Page 34
2.3.3. The measurement attenuator......Page 37
3.1. Resonance......Page 42
3.2. Coaxial cavities......Page 45
3.3.1. Excitation......Page 46
3.3.2. Possible shapes......Page 48
3.3.3. Lines of force......Page 49
3.3.4. Equivalence criterion......Page 50
3.3.5. Electric length......Page 53
3.3.6. Conditions for optimal Q0......Page 55
3.3.7. Refutation of the method......Page 57
3.3.8. Calculation of Q0......Page 60
4.1.1. and-pass......Page 63
4.1.2. Reject......Page 64
4.1.3. Pass-reject......Page 66
4.2.1. The thin metal sheet......Page 69
4.2.2. Extrusion......Page 71
4.3. Assembly......Page 72
4.4.1. Compensation for ambient temperature......Page 74
4.4.2. Compensation for internal heating......Page 78
4.4.3. Various remarks. Humidity effects......Page 80
4.5.1. Insertion loss and selectivity......Page 86
4.5.2. Loop tuning......Page 91
4.5.3. Frequency tuning......Page 94
5.1. The band-pass function......Page 98
5.2. Calculation of a Tchebycheff band-pass......Page 100
5.3.1. Planar circuits......Page 102
5.3.2. Ceramic filters......Page 104
5.3.3. Dielectric air filters......Page 107
6.1.1. General structure......Page 111
6.1.2. Fastening the tubes......Page 113
6.1.3. Housing, tuning, stability in temperature......Page 115
6.2.1. Parameterization......Page 119
6.2.2. The modified method......Page 122
6.3.1. General rules......Page 128
6.3.2. Elliptization of the Tchebycheffs......Page 132
6.3.3. Mechanical model......Page 136
6.3.4. Abundances of the mechanical model......Page 138
7.2. The duplexer......Page 143
7.2.1. The pass-reject duplexer......Page 144
7.2.2. The band-pass duplexer......Page 148
7.3. The combiner......Page 154
7.3.1. The nodal-point combiner......Page 155
7.3.2. The series combiner......Page 157
7.3.3. Harness adjustment......Page 158
7.3.5. Projected losses......Page 162
7.3.6. Optimal Q......Page 168
8.2.1. Operating principle......Page 170
8.2.2. Usage......Page 173
8.2.3. Characterization......Page 175
8.3. The antenna alarms......Page 178
8.3.1. Detection alarm......Page 179
8.3.2. Thermal alarm......Page 180
8.4.1. Loads......Page 183
8.4.2. Reminders concerning the transmission of heat......Page 187
8.4.3. Attenuators......Page 189
8.5.1. Introduction......Page 190
8.5.2. Intercept point......Page 195
8.5.3. Noise factor......Page 197
8.7. The 2nd harmonic rejecter......Page 199
9.1. Introduction......Page 201
9.2. Technologies......Page 203
9.3. The hybrid transformer......Page 206
9.4. The 180° hybrid ring......Page 208
9.5. The wireline......Page 210
9.6. The “groundless? coupler......Page 211
9.7. The “catnose? coupler......Page 213
9.8. Discrete-elements coupler......Page 214
9.9. Numerical data......Page 216
9.10. Applications......Page 222
10.1. Introduction......Page 224
10.2. Functioning......Page 225
10.3. Structures......Page 226
10.4. Tapping and coupling......Page 230
10.5. Quality coefficient......Page 231
10.6. Set-up rules......Page 234
10.7. Applications......Page 235
11.1.1. Choice of the technology......Page 236
11.1.2. Cascading hybrid TX multicouplers......Page 237
11.1.3. TX multicoupler with degressive coupling......Page 238
11.1.4. Cavity TX multicouplers......Page 239
11.1.5. TX multicoupler with directive filters......Page 244
11.2. Receiver multicouplers RX......Page 246
11.3. TX/RX multicouplers......Page 247
11.4. TMA......Page 251
11.5.1 Limit power......Page 254
11.5.2. Intermodulations......Page 260
11.6. Multiband coupling......Page 265
12.1. BASIC programs......Page 268
12.2. Varia......Page 275
13.1. The coupler without intrinsic loss......Page 282
13.2. Infinite rejection band-pass......Page 286
13.3. Helix TX multicoupler......Page 287
13.4. Conclusion......Page 289
Bibliography......Page 291
Index......Page 293
